Efficient Integrated Backbone (EIBONE) - Multi-Layer Transport Networks with Integrated Control

Transcription

1 Efficient Integrated Backbone (EIBONE) - Multi-Layer Transport Networks with Integrated Control Achim Autenrieth, Nokia Siemens Networks Disclaimer and Acknowledgment The work presented here is a joint effort from the partners of the German funded research project EIBONE The common view and key results of EIBONE are summarized in Position papers / Whitepapers: Gerd Eilenberger et al: Multi-Layer Transport Networks with Integrated Control, ITG Fachtagung Photonische Netze, , Leipzig P M Krummrich et al: "EIBONE working group transmission technologies - white paper 100 Gbit/s Ethernet", VDE Studien und Reports, April 2008, wwwvdecom Multi-Layer Transport Networks with Integrated Control Positionspapier des EIBONE Arbeitskreises Netze und Referenznetze Kontakt: Gert Eilenberger, Alcatel Lucent Bell Labs Deutschland Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

2 Agenda Project Overview Introduction Importance of transport networks Evolution of transport networks Network architectures and concepts Network control and management Traffic models, traffic evolution, user behaviour Network planning/optimisation, techno-economic studies Implementation aspects Transmission technologies for 100Gbit/s Common View about the future transport networks Current state of art in EIBONE Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, BMBF Research Framework EIBONE Efficient Integrated Backbone Motivation Motivation Heterogenity Heterogenityand and complexity complexity of of networks networks Increasing Increasing bandwidth bandwidth demands demands Not Not optimized optimized scalability scalability of of IP IP transport transport networks networks Separated Separated definition definition of of IP, IP, Ethernet Ethernet and and transport transport networks networks Multi-Service Access Service Control Layer Metro Core Operator A Service Control Layer Core Metro Operator B Multi-Service Access End-to-End Quality-of-Service Key Key Research Research Objectives Objectives Cost-efficient, Cost-efficient, flexible flexible and and robust robust core core and and metro metronetworks Scalable Scalableand and secure securenetwork architecures architecuresfor forthe thefuture futureinternet using using optical opticaltechnologies technologiesand and Layer Layer2 Hardware- Hardware-and and software softwareprototypes for fordemonstration demonstrationand and field fieldtrials Research Research Framework Framework EIBONE EIBONE Size: Size: projects; projects; 9 companies companiesincluding including5 SMBs, SMBs, 2 research researchinstitutes, 4 universities universities Effort: Effort: ~ Mio Mio Grant: Grant: ~ Mio Mio Duration: Duration: 3 years years (Sep (Sep Aug Aug 2008) 2008) Consortium ConsortiumLead: Nokia Nokia Siemens Siemens Networks, Networks, DTAG DTAG Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

3 EIBONE Partners System vendors and network operators Measurement devices, Components and Subsystems Network planning and simulation Research institutes and Universities Working groups - all Partners - Universities as sub-contractors Universität Dortmund Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, EIBONE Workgroups / Study Groups Cooperation of Partners in EIBONE Research Framework Workgroup Reference Networks Definies realistic network topologies and traffic data to allow comparable network studies Workgroup Network Architectures Studies and evaluates network architectures for efficient multilayer transport networks Workgroup Transmission Technologies Defines concepts and studies technologies for robust optical transmission Topology Traffic matrix Traffic Growth Productivity , Video conferencing Gaming & Virtual World System experiments error transmitter receiver correction TX DGD 1DGD 2 DGD RXn UFEC SCR0 SCR1 SCRn TX RX UFEC scanning angle 360 o 904 Real-time user control any viewing 669 angle 503 Entertainment NG-ITV Channels [Mbit/s] ,0 5, IP-based Network Architecture L2-based Network Architecture w/o scrambling FEC Frames w scrambling FEC Frames B outage B bursts E R time E R time Transmission experiments Components and Modules IP OTN IP L2 OTN Contact: Ralf Hülsermann (ralfhuelsermann@t-systemscom) Contact: Dr Gert Eilenberger (gerteilenberger@alcatel-lucentde) Contact: Dr Peter Krummrich (peterkrummrich@udode) Result: Positioning Papers for common understanding of German instudies and reseach Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

4 Introduction Importance of Transport Networks Backbone of the communication infrastructure Basis for services and applications in the internet, in mobile and corporate networks Innovative end-user applications with high data volumes Faster (optical) access networks for residential customers Cost efficiency Robustness CAGR of traffic: 100% Service Access Aggregation IP/Aggregation Edge Core Application IMS 3Play FTTH 3Play VDSL CIS Customer IP Service Access Switch PBB-TE / PBB 3P-PE BRAS CIS PE IP Edge Routing IP/MPLS Core Carrier Ethernet Transport DSLAM CES Customer Ethernet Service PBB-TE / PBB Optical Transport COS Customer Optical Service DWDM Metro DWDM Core Multi-layer transport networks with integrated Control Plane Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Evolution of transport networks Transport network evolution driven by convergence of traditionally separated packet and circuit technologies - multilayer network design IP-based services prevailing Ethernet/L2 technologies compete with established packet and circuit technologies but not proven yet SDH/OTN/optical technologies - cost efficient transport pipes Optical transport remains key Year Enabling further decline of transport cost Upgrade from Gbit/s happening, 100+ Gbit/s in development Optical transport stretching from core to aggregation and access (FTTx), gradually substituting existing copper infrastructure novel architectural concepts and network design possible supports virtually unlimited bandwidth delivered to the end user $ per Gbit/s/km Fit: -40% pa Decline of longhaul transport cost Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

5 Network Architectures and Concepts Scope Reduce overall cost and increase network efficiency in WAN and MAN Promising Solution One converged network for all fixed and mobile services introducing low cost and flexible switching on intermediate convergence layer (L2) optical bypass for 100M10G connections Potential Savings on L2/L3 resources optical bypass for 100M10G connections (avoid OEO conversions & packet processing) studies show up to 35% savings in the backbone and up to 70% savings in the metro space Perspective Switches/Routers with hundreds of Gbps are required soon at reasonable cost 10G/40G technologies only for mid-term, further driving the100g standard More studies needed on service integration and network convergence topics Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Network control and management Apply GMPLS and extensions for Control Plane of multi-layer transport networks Single control instance for L1-L2-L3 Automated and optimized usage of resources Increase utilization of networks Allow flexible and fast reconfiguration Decrease operation cost by automation and integration End-to-end QoS in multi-domain, multi-operator and multi-layer environment Multi-layer resilience capabilities Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

6 Traffic Models, Traffic Evolution, User Behavior Change of traffic characteristics Increase of user access bandwidth Growth of traffic ~100% per year Emergence of new services Change of user behavior Traffic models and predictions Required for network operation and planning Reflection of real traffic characteristics High accuracy desired Comparison and adjustment with measured data Conclusions Increase of highly dynamic IP traffic Support of dynamic traffic by layer 2 Ample traffic predictions for about 3 5 years Long term predictions difficult Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Network Planning System Model Optimization Model Mathematical Model Optimization Detailed XML-specification (hardware down to media, cost, demand, network) Traffic demands based on DFN measurements 3 reference networks Specific planning use-cases Architecture decisions Link/node capacity planning (Dynamic) reconfiguration Mixed-integer programming Exact methods providing quality guarantees Fast heuristic methods Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

7 Implementation aspects All optical networking still in far future Key functions (3R, memory, signal processing) still not yet available at industrial level of maturity Optical transparency is an option for pt-pt links (only limited number of hops possible) Future nodes will be packet based Scalability issues with L3 packet processing L1-L2 solutions will enable multi-terabit nodes Optimized functional distribution over L1-L2-L3 New switching granularity for terabit networks Flexible, programmable hardware (service agnostic) 100G networking raising new challenges Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Transmission Technologies for 100Gb/s EIBONE Whitepaper Overview Current state of standardization Concepts and implementation options Modulation formats Equalization, compensation, and mitigation of signal distortions Opto-electrical components Overview of transmission experience Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

8 Concepts and implementation options Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Modulation formats Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008,

9 Summary Key Messages Continuously growing Internet traffic requires evolution of transport networks Legacy SDH/SONET and IP backbone networks will converge on a single packet transport platform EIBONE provides cost optimized, high quality multilayer transport platform Analysis and modeling of service and traffic profiles justify EIBONE transport network solutions Advanced modulations schemes allow transmission of 100Gb/s in existing DWDM network infrastructures Achim Autenrieth / Efficient Integrated Backbone (EIBONE) / EuroView2008, Thank you for your attention! Achim Autenrieth Nokia Siemens Networks achimautenrieth@nsncom